Engine worked by oil-vapor or gas.



No. 737,069. PA-TBNTED AUG.-25, 1903.

W BROWN.

ENGINE WORKED BY OIIrVAPOR 0R GAS.

APPLICATION FILED 31m. 10, 1901. 10 MODEL. 2 snnn'rs-snnm 1.

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No. 737,069. Y PATENTED AUG. 25, 1903.. W. BROWN.- I ENGINE WORKEDBY on; VAPOR, 0R GAS.

AIPLIOATIOH rump sum. 10. 1901. NO MODEL. 2 SHEETS-SHEET 2.

Tn: Noam: vrrzns 00., PHOTO-LITHO.. WASHINGTON. n. c.

To all whom it may concern.-

iatented August 25, 1903.

PATENT OFFICE.

wILLIAM BROWN, or MELBOURNE, VICTORIA, AUSTRALIA.

ENGINE WORKED BY OIL-VAPOR OR GAS.

QPEOIFICATION forming part of Letters Patent No. 737,069, dated August 25, 1903.

Application filed fleptember 10, 1901. Serial No. 74,872. (No model.)

Beit known that I, WILLIAM BROWN, asuoj ect of the King of Great Britain and Ireland, residing at Maddens Model Works, No. 187 LittleYJollins street, Melbourne, in the State of Victoria, Australia, have invented certain new and useful Improvements in Engines Worked by Oil-Vapor or Gas, of which the following is a specification. Y My invention has for its object to provide apparatus to regulate the flow of volatilizable oil, to vaporize same, and to mix it with air in such a manner as to secure subsequently a complete combustion in the cylinder, and so obtain a maximum of force with perfect absence of smoke, carbon, and smell. I will now describe the invention with reference to the accompa'nyingsheet of drawings, in which Figure 1 shows the apparatus in elevation and connected with the cylinder of an engine. Fig. 2 shows a vertical section taken on line A A of Fig. 3. part horizontal section of my improvements. Fig. 4 shows side View of the mixing appliance. Fig. 5 shows a vertical section taken through the regulator for the flow of oil or other fluid to be gasified.

In the drawings, 1 represents the vaporizer, which is secured to cover 2 of cylinder 3. On the top of the vaporizer is set an oil-regulator 4.. The regulator has inlet-pipe 5,-by which the oil or fluid for vaporizing is supplied to it. This may be supplied by a small pump drawing fluid from a supply-tank. The regulator is in the form of a tube and which is screwed into the cover 6 of the vaporizer and has a port-ion 7 projecting into same. The regulator is of the plug-tap pattern; but the plug 8 is tapered and has an annular recess 9, which tapers from its greatest depth to the periphery of the plug, and thus extends about two-thirds around the plug, the said recess being arranged to register with the bore of the regulator, and thus forms a long shut-oft by means of which a very fine adjustment of the amount of oil or other vaporizable fluid passing through the tap is secured. The plug 8 has handle 10 for operating it, and its opposite end outside the regulator-tube has a spiral spring 11, Fig. 5, encircling it, with a screw-stop 12 screwed into the end and hold- Fig. 3 shows a part plan and ing spring in position, the object being to prevent leakage at the tap. The regulator tube t has attached or formed in part with it a disk 13, which has indicator-marks on its face, and apointer 14 is secured to the plug for the purpose of indicating the adjusted quantity of fluid passing through the tap into the vaporizer. The regulator is fitted with a small valve'15, set below the plug and which prevents overpressure of gas in the vaporizer, and it is also usable to prevent the petroleumoil or the like gas-producing fluid being choked in its passage through the tap into the vaporizer.

16 represents a pin set in the tube above the valve to limit its travel.

The regulator is also provided with an overflow-pipe 17, which communicates with the bore of tube and which is preferably led to the supply-tank, so that if more oil than is required is supplied by the pump the su rplus will return to the supply-tank.

The vaporizer-casing l is of cylindrical form and is open at the lower end to admit a burner. '18 represents the ordinary hollow firing-tube, which may be composed of porcelain, iron, or any other suitable material, and which lies across the lower portion of the vap orizer-casing and is held in position by a screw-plug 19 and communicates by passage 24 in the cylinder-cover 2 with the inside of the cylinder. The upper portion of the vaporizer-casing contains a Vaporizer-box 20, which is secured to the cover 6 by screws'2l.

This box is filled or partly filled with wiregauze 53. The box is of smaller diameter than the casing 1, an annular space 22 being provided between the box and casing for the heat-fumes. The fumes from the burner will thus first heat the firing-tube 18 and then pass up the annular passage 22 to heat the vaporizer-box 20, so as to vaporize the oil that falls from-the regulator-tube 7. Outlet-openings 23 are provided in the'vaporizer-casing 1, by which the fumes pass out.

25 represents a pipe which communicates by junction 26 with opening 27 in the cover of the vaporizer-casing. This pipe conveys the oil-vapor to an appliance where it is mixed with air prior to entering the cylinder. '7

The mixing appliance comprises a cylindrical casing 28, Figs. 2, 3, and 4, which receives the pipe 25 and has flange 29, by which it is bolted to the cylinder-cover. end of the casing 28 is provided with an annular row of holes 30. The casing 28 has also a cap 31 fitting on its end and provided with an annular row of holes 48 to correspond and register with the holes 30 in the end of the casing 2 A screw-rod 32 passes through the cap 31 and the lower end of the casing 28. Inside the casing 28 is a shell 33, having a cone-like end 40, which is fixed in the upper end of casing 28 and has passage 34, Fig. 2, communicating with oil-vapor pipe 25. The conical portion of the shell 33 is provided with an annular row of perforations 35, Fig. 3, which are inclined and directed to a central point. The shell 33 after being fixed in place as above explained may be further retained by any device to prevent it turning, it required. The shell 33 is formed also with a chamber 36 around a portion of the rod 32 and which communicates with passage 34. the rod 32 and within the chamber 36 is set a ring 37, provided with diagonal grooves 38, Fig. 2, on its outer circumference, and beyond this ring the plug terminates in a conical head 39, which lies adjacent to the hollow cone 40 of the shell 33. Upon the rod 32 is screwed a milled nut 41, and the rod terminates with a milled head 42, these being for adjusting the parts when engine is working. The cap 31, Figs. 1, 3, and 4,before mentioned, has a rack 43,and a worm 44 is arranged to engage with same, so as to turn the cap. The worm-rod is supported by bracket 45, projected from and secured to the casing 28, and a milled head 46 is provided for turning the wormrod. A plate 47 is projected from casing 28 and bears upon top of head 46, constituting a dial-finger for the reading of the graduations on face of handle-plate 46, the face of the milled head 46 having indicator-marks upon it,and the end of the plate 47 is marked also to form an indicator to register with the milled head. The casing 28 is also marked, and an arrow on the cap will indicate the relative positions of the holes 30 and 48, as represented by the letters 0 and C--t'. 6., Open, Closed Fig. 4, and by means of which the exact adjustment of the cap required to a nicety can be obtained, so as to obtain a fine adjustment of the quantity of air entering the mixing appliance through the said perforations.

The amount of opening for air at the perforations 30 and 48 is controlled by the worm 44, Fig. l, and the opening for passage of gas around the head 39, Fig. 3, is adjusted by unscrewing the nut 41, next turning screw-rod 32 by means of thumb-piece 42, and when the desired adjustment is obtained, such as represented in Fig. 3, the nut 41 is screwed up against the perforated cap 31, so that the parts are then looked with the air and gas passages adjusted to the exact positions required. During the turning of rod 32 the cap 31 is held immovable by the worm 44.

The lower 1 Upon The oil-vapor is drawn from the vaporizer by the outward stroke of the piston of the engine along the pipe 25, through the passage 34 and along the diagonal grooves 38 of the ring 37, and thence passes out around the cone 39, the cone causing the vapor to debouch outwardly. The air that has entered by the perforations 48 and 30 will pass through the inclined openings in the conical end 40 of the shell and will thus be directed inwardly toward a common center-that is to say,across the path taken by thevapor-sprayso as to cause a thorough intermingling of the air and gas in the chamber 4.) in the cylindercover. The mixed explosive-gas thus formed will then pass by valve 50 into the cylinder.

By an exact adjustment of the regulator-tap 8 and the cap 31 a perfectly combustible mixture of air and gas will be obtained. (The proper adjustment will be obtained when the exhaust-gases are clear and the speed of engine is highest.) This mixture on its compression in the cylinder by the backward stroke of the piston will be driven (see Fig. 2) in part along the passage 24 to the firing-tube 18 and whereby the mixture will be ignited, causing the explosion of the body of the mixed gas above the piston in the cylinder 3 to take place, and thus energize such piston in its downward stroke, as usual with such engines.

51 represents exhaust-valve from the cylinder, and 52 exhaust-passage.

The valves 50 and 51 and their operation are not of the present invention, and consequently are not particularly described or illustrated.

Although I have illustrated my improvements as applied to an engine having a vertical cylinder, it is obvious that with but slight modification the parts may be attached to a horizontal cylinder, and I would also have it understood that I may vary some of the parts in accordance with the particular oil, hydrocarbon vapor, or gas to be used to work the engine.

Having now particularly described and ascertained the nature of my said invention and in What manner the same is to be performed, I declare that what I claim is- 1. In engines worked by oil-vapor or gas, a mixing appliance comprising a casing 28 secured to cylinder and having an annular row of openings 30 in its end, and a cap 31 having a corresponding annular row of openings to register with the openings 30, a rack on the cap edge, a worm-rod for actuating cap, and means for indicating the relative positions of the openings, a screw-rod 32, a shell 33 within the casing and formed with a passage for the oil-vapor, a ring 37 on the rod having diagonal circumferential grooves 38, and a conical head 39 beyond same, a conical portion 40 having an annular row of inclined openings directed toward a central point, substantially as and for the purposes described.

IIO

2. In engines worked by oil-vapor'or gas,

t a mixing appliance comprising a casing 28 secured to cylinder and having an annular row of openings 30 in its end, and a cap 31 fitting onto said end and having a corresponding annularrow of openings 48 to register with the openings 30, a rack 43 on the cap edge, a worm-rod 4:4: for actuating cap, and supported on bracket 45 a milled head 46 with indicator-marks, and a pointer 47 for indicating the relative positions ofthe openings 30 and 48, a screw-rod 32 with milled head 4.2 and locking-nut 41, a shell 33 within the casing and formed with a passage 34 for the oil-vapor, a ring 37 on the rod having diagoanal circumferential grooves 38, and a conical head 39 beyond same for causing the vapor or gas to be sprayed outwardly, a conical portion 40 having an annular row of inclined openings 35 directed toward a vcentral point for causing the air to flow inwardly so f as to intersect andmingle with the'vapor,

substantially as 'and for scribed.

In testimony whereof I have signed'my name to this specification in the presence of two subscribing Witnesses.

the purposes de WILLIAM BROWN. 7 i

Witnesses; 1

O. WiWAnE, A. HARKER. p 

